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2 years ago

This shape has been made from two identical triangles

Mathematics

1 answer:

uysha [10]2 years ago

3 0

Answer:

square or rectangle

Step-by-step explanation:

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Marisha walks 8 miles in 5 days. If she walks at the same rate, how far

stiv31 [10]

Answer:

56 miles

Step-by-step explanation:

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2 years ago

What is the domain and range of each curve?

Olin [163]

Answer:

Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

Step-by-step explanation:

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3 years ago

Which ordered pair is a solution of the equation y=7x-2

umka2103 [35]

Answer:

(1, 5), (3, 19) (-1, -9)

Step-by-step explanation:

really need the choices

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2 years ago

Is 0.74 greater than 3/2

KonstantinChe [14]

Answer:

Step-by-step explanation:

if you simplify 3/2 to a decimal, you get 1.5

comparing 0.74 to 3/2 we can conclude that 3/2 is in fact greater

7 0

2 years ago

"How much do students pay, on average, for textbooks during the first semester in college? From a random sample of 400 students

dezoksy [38]

Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

Step-by-step explanation:

Since we have given that

Sample size = 400

Mean = $357.75

Standard deviation = $37.89

At 95% confidence level, z = 1.96

We first find the margin of error.

Margin of error is given by

$z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71$

95% confidence interval would be

$\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)$

Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.

7 0

3 years ago